Quenching and straightening tools



Jan. 26,- 1943. J. M. Lu Rs QUENCHING AND STRAIGHTENING TOOL 2 Sheets-She et 1 Filed July 9, 194 1 INVENTOR. l7. Wlaexr:

Jan- 26, 1943. J. M. LI JERS 2,309,518

QUENCHING AND STRAIGHTENING TOOL Filed July 9, i941 2 Sheets-Sheet 2 Patented Jan. 26, 1943 QUENQHING AND STRAIGHTENHNG TOOLS John M. Luers, Mount Clemens, lVfich., assignor to John Milton Luers Patents Incorporated, Detroit, Mich a corporation of Michigan Application July 9, 1941, Serial No. 401,625

11 Claims.

This invention relates to a quenching and straightening tool. Various work pieces which require hardening or tampering, particularly blades and cutters of various types, are made in large quantities and as they cool these tools are liable to become warped or deformed so that they are no longer suitable for the purpose intended.

It is an object of this invention to provide 4 parallel with the rods 4 is a slot 9 upwardly through which guides Iil extend. Each of these guides is secured into the underside of a block H, 52, I 3 or I4, all of which latter are mounted upon the base I for movement parallel with the rods 4. Projecting downwardly from. opposite ends of the blocks I2, l3 and I l adjacent the rods t are contact members I5 which are contacted by adjustable elements It in engagement a quenching and straightening tool in which a with threaded portions of the said rods, so that plurality of work pieces may be placed simulwhen the latter are moved axially by the springs taneously when hot in order to prevent the oc- 6 the elements It strike .the members I and currence of the deformation above referred to, move the blocks I2, I3 and M to the right, and also to obtain a uniform quenching and Figures 1 and 2. On opposite extremities of the therefore a uniform temper in all the work block II apertured lugs ii are secured through pieces. which the rods 4 pass, and screws Ila, or other This invention also aims, among other things, suitable fastening means hold these lugs to the to provide a quenching and straightening tool; rods so that upon axial movement of the latter wherein means are provided for adjusting the the block II is corresp y m vedspacing between the blocks between which the In threaded engagement with one side of the work pieces are held so that the tool may be base I su stant a y ntra y of ts le t is an set to receive work pieces of diiferent widths; adjusting screw I8 extending parallel with the wherein a movable upper plate is provided which rods 4. This screw contacts the adjacent side is vertically adjustable and can be easily set to of the blo k H and when i htened forces the bear against the upper surfaces of the work latter to the left-Figures 1 an t pieces to prevent any vertical distortion while base I thereby also moving the rods 4 axially they are cooling; and wherein the blocks and against the tension of the springs 6. A denotes upper plate are water cooled for quenching the W rk pieces n Of Which is held between the workpieces. blocks H and I2, another between the blocks Having thus briefly and broadly stated some i2 and I3, another between the blocks I3 and of the objects and advantages of the invention, I I l, and another between the block I l and an will now describe a preferred embodiment there- Opp bearing ber or face l3 provided of with the aid of the accompanying drawings, upon the base I. As the blocks are moved to wherein: the left by adjustment of the screw I8 the work- Figure 1 illustrates a plan View of the invenp ces e securely pp d d as t e block l tion. is moved the elements It are moved away from Figure 2 is a front view thereof. the contact members I5 into their relative posi- Figure 3 is a section on the line 3 -3 of Figtions shown. Obviously when the screw I8 is ure 1, and slackened back the springs 6 move the rods 4 Figure 4 is an end View taken on the line 4-4 and block II, and the elements It contact the of Figure 1. members I5 and move the blocks l2, I3 and I4 Referring to the drawings, I designates a base in the same direction until the spacings beon opposite sides of which bearings 2 and 3 are tween the blocks, and between the block I4 and arranged in pairs. Mounted for both rotary the bearing e I9 s sufficient to permit t e and axial movement in each pair of bearings 2 removal of one set of workpieces and the inand 3 is a rod 4 which is threaded intermesertion of another set. The movement of the diately of its length. Provided around each rod rods 4 to the right is then halted by the stops 1. 4 between its bearing 2 and an enlargement, The blocks II, I2, I 3 and I4 and that portion such as a nut 5, on its adjacent extremity is of the base adjacent the bearing face I9 are a helical spring 8. These springs tend to move provided with cooling passages IIa, I2a I311, Ma the rods 4 axially to the right-Figures 1 and and Ida respectively through which a cooling 2 and in threaded engagement with these rods medium may flow. In order that the flow may are stops 1 which contact the opposite sides of be continuous through these passages a tubular the bearings 2 and limit the rod movement. connection 28 is attached to one extremity of Formed substantially centrally across the base the passa e i s f o t op osite e t ity of which the medium passes to the block [2 through a connection 2|. Another connection 22 connects the passage I2a with the passage Ba, and from the block l3 the flow is continued through a connection 23 to the passage Ma whence it passes into the passage Isa through a connection 24.

Extending upwardly from the base i is a fulcrum pin 25 having an arm 26 pivoted thereon. Supported beneath the arm 26 by guide pins 21 which depend therefrom is a hollow upper plate 28 which is urged in an upward direction by springs 29 mounted upon the said pins. In threaded engagement with the arm 26 and extending downward therethrough is a screw 30 which, when tightened, forces the plate 28 down against the top of the work pieces A and prevents vertical distortion of the pieces while they are cooling. Obviously when the screw 30 is turned in one direction the plate 28 is raised by the springs 29. 3| denotes a stop to limit the pivotal movement of the arm 26 and halt its movement when it is correctly positioned over the workpieces.

A suitable inlet and outlet 32 and 33 is provided in the upper plate 28, which is hollow, so that the cooling medium may also pass therethrough. In the present instance a connection 34 extends from one extremity of the passage 19a in the base I to the plate inlet 32, and from the outlet 33 another tubular connection 35 extends.

From the foregoing it will be readily seen that the adjustable elements it and the stops I may be set so that work pieces of different widths can be suppoited for straightening and quenching, and at the same time the upper faces of the workpieces are held against distortion by the plate 28 which is vertically adjustable and through which the cooling medium also flows.

While in the foregoing the preferred embodiment of the invention is described and shown, it is understood that alterations and modifications may be made thereto provided they fall within the scope of the appended claims.

What I claim is:

1. A tool of the character described comprising a base, means thereon for straightening work pieces therebetween, a post extending from the base, an arm pivoted thereon, an upper plate mounted beneath the arm, means coacting with the arm for adjusting the plate downward to bear upon the upper sides of the work pieces to support them against distortion, and means for arresting the pivotal movement of the arm when the upper plate is in correct operative position.

2. An arrangement of the character described comprising a base having a bearing face thereon, a plurality of blocks parallel with one another and with said bearing face, said blocks being mounted for movement toward and from said bearing face to engage work pieces between adjacent pairs of blocks and between the bearing face and the block adjacent thereto so that two work pieces are engaged by each intermediately positioned block one by each side thereof, means for moving the block farthest from the bearing face toward the latter to sucessively engage said Work pieces, and spring actuated means for moving all said blocks away from the bearing face and for increasing the spacing between adjacent blocks when the plate moving means is released.

3. An arrangement of the character described comprising the combination set forth in claim 2, including a plate mounted for movement at right angles to the direction of movement of the blocks adapted to bear against the edge faces of work pieces supported between adjacent pairs of blocks.

4. An arrangement of the character described comprising a base having a vertical bearing face thereon, a plurality of substantially parallel blocks mounted for independent movement towards and from the bearing face and substantially parallel therewith to engage work pieces between adjacent pairs of blocks and between the bearing face and the adjacent block, means for forcing the blocks towards one another to engage said work pieces, and spring actuated means tending to move all the blocks away from the bearing face and to increase the spacing between said blocks.

5. An arrangement of the character described comprising the combination set forth in claim 4, wherein the blocks and the bearing face are water cooled, and including a water cooled plate mounted over the base for movement at right angles to the direction of movement of the blocks to bear against the edge faces of the work pieces between said blocks.

6. An arrangement of the character described comprising a base having a bearing face thereon, a row of substantially parallel blocks mounted for reciprocation on the base towards and from said bearing face and substantially parallel therewith to engage work pieces between adjacent pairs of blocks and between the bearing face and the block adjacent thereto, parallel rods mounted for axial movement on said base, spring means tending to move the rods in one direction, c0- acting means on the rods and blocks whereby movement of the rods by spring action increases the spacing of the blocks from one another and from the bearing face, and means for moving the blocks toward the bearing face to engage the work pieces.

'7. An arrangement of the character described comprising the combination set forth in claim 6, including a plate mounted for movement at right angle to the direction of movement of the blocks adapted to bear against the faces of the work pieces between adjacent blocks.

8. An arrangement of the character described comprising the combination set forth in claim 6,

wherein the blocks are mounted for independent i reciprocation, and wherein the means for moving the blocks is directly applied to the block farthest from the bearing face.

9. An arrangement of the character described comprising a base having a bearing face thereon, a row of blocks substantially parallel to one another and to said bearing face mounted on the base for reciprocation towards and from said bearing face to engage work pieces between adjacent pairs of blocks and between one block and the bearing face, coacting means on each block and base for controlling the path of movement of the blocks, said bearing face and said blocks being water cooled, rods mounted on the base for axial movement parallel to the path of movement of the blocks, coacting means on the rods and blocks for moving the latter away from the bearing face to permit insertion of said work pieces, spring means tending to move the rods in that direction. and means for moving the block remote from the bearing face towards the latter whereby the work pieces are successively engaged.

10. An arrangement of the character described comprising a base having a vertical bearing face towards one extremity, a plurality of substantially parallel blocks mounted for independent "the bearing face when the rods are moved in one direction, springs tending to move the rods whereby the blocks are moved farther from the bearing face, and means on the base for moving the block farthest from the bearing face towards the latter.

11. An arrangement comprising the combina- I tion set forth in claim 10, wherein the bearing face and blocks are water cooled, and a plate mounted for movement at right angles to the direction of movement of the blocks to bear against the edge faces of work pieces held between the blocks.

JOHN M. LUERS. 

